<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        body {
            text-align: center;
        }
    </style>
</head>
<body>
<h1>修改商品信息</h1>
<form action="/update">
<input type="text" name="id" placeholder="请输入ID"><br>
<input type="text" name="title" placeholder="请输入商品标题"><br>
<input type="text" name="price" placeholder="请输入商品价格"><br>
<input type="text" name="num" placeholder="请输入商品库存"><br>
<input type="submit" value="提交修改">
</form>
</body>
</html>